Hot Racing Losi Promoto MX Rear Brake Disc and Caliper LPC39R04

Hot Racing Losi Promoto-MX Rear Brake Disc & Caliper Set (Gold) [HRALPC39R04]

Racing Aluminum Rear Brake Disc Caliper Upgrades Parts Accessories for 1/4 RC...

XLC Brake Caliper BR-R03 Dual Pivot Road Bike Caliper 39-54mm Drop Black -H

Tektro R580 Rim Brake Caliper Set 39-51 Recesssed F/R Used Xlnt Kool-Stop Pads

Tektro R313 Front Rear Dual Pivot Road Bike Caliper Brake, 39-52mm Reach, Silver

Tektro R313 Rear Dual Pivot Road Caliper Brake, 39-52mm Reach, Black

R525 Dual Pivot 39-49mm Reach Road Rear Brake Caliper Aluminum (Black)